公开(公告)号：US20070053553A1

公开(公告)日：2007-03-08

申请号：US10539387

申请日：2003-12-03

申请人： Frans Gerritsen ,  Steven Lobregt

发明人： Frans Gerritsen ,  Steven Lobregt

IPC分类号： G06K9/00

CPC分类号： G06T15/08

摘要： A system for visualizing a 3D volume, in particular for medical applications, includes an input 1010 for receiving a three-dimensional set of data representing voxel values of the 3D volume. The data set is stored in a storage 1030. A processor projects the volume onto an imaginary 2D projection screen from a predetermined viewpoint. For each pixel of the 2D projection image a ray is cast through the pixel and through the volume. A protocol is used that, while traversing along ray positions within the volume, determines a rendering algorithm and/or rendering parameters in dependence on the ray position. For each ray position the determined rendering algorithm/parameters are used to calculate a contribution to a pixel value of the pixel based on at least one voxel value within a predetermined range of the ray position. An output 1040 is used for providing pixel values of a 2D image for rendering on a display.

摘要翻译： 用于可视化3D体积的系统，特别是用于医疗应用的系统包括用于接收表示3D体积的体素值的三维数据集合的输入端1010。 数据集存储在存储器1030中。 处理器从预定的角度将体积投影到假想的2D投影屏幕上。 对于2D投影图像的每个像素，光线通过像素投射并通过该体积。 使用协议，当沿着卷内的光线位置移动时，根据光线位置确定渲染算法和/或渲染参数。 对于每个射线位置，所确定的渲染算法/参数用于基于在射线位置的预定范围内的至少一个体素值来计算对像素的像素值的贡献。 输出1040用于提供用于在显示器上呈现的2D图像的像素值。

公开(公告)号：US20060008143A1

公开(公告)日：2006-01-12

申请号：US10531023

申请日：2003-09-12

申请人： Roel Truyen ,  Steven Lobregt ,  Frans Gerritsen

发明人： Roel Truyen ,  Steven Lobregt ,  Frans Gerritsen

IPC分类号： G06K9/34 ,  G06K9/00

CPC分类号： G06K9/6209 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10081 ,  G06T2207/20016 ,  G06T2207/30101

摘要： An apparatus 1000 includes an input 1010 for receiving an N-dimensional signal, N≧2. A storage 1030 stores a composite model of a composite structure for estimating parameters of the model with respect to the signal. The composite model is based on constituent models 210-290 that each correspond to a constituent structure in the signal and that are incorporated in the composite structure. Each constituent model is designated for estimating parameters of the constituent model with respect to the signal based on prior knowledge of the constituent structure. At least two of the constituent models are based on differing technologies. Each constituent model is provided with a uniform interface for controlling the constituent model and for retrieving parameters estimated by it. A processor 1020 is programmed to estimate the model parameters by controlling the constituent models to estimate their parameters; to retrieve estimated parameters from the constituent models; and to estimate parameters of the model in dependence on the retrieved parameters.

摘要翻译： 装置1000包括用于接收N维信号的输入端，N> = 2。 存储器1030存储用于估计关于信号的模型参数的复合结构的复合模型。 复合模型基于构成模型210-290，每个模型分别对应于信号中的组成结构并且并入复合结构中。 每个构成模型被指定用于基于构成结构的先验知识来估计关于信号的组成模型的参数。 至少两个组成模型是基于不同的技术。 每个构成模型都具有统一的界面，用于控制构成模型并检索由其估计的参数。 处理器1020被编程为通过控制成分模型来估计它们的参数来估计模型参数; 从成分模型中检索估计参数; 并根据检索到的参数来估计模型的参数。

公开(公告)号：US20070230782A1

公开(公告)日：2007-10-04

申请号：US11568245

申请日：2005-04-21

申请人： Raymond Habets ,  Nicolae Suditu ,  Steven Lobregt ,  Frans Gerritsen

发明人： Raymond Habets ,  Nicolae Suditu ,  Steven Lobregt ,  Frans Gerritsen

IPC分类号： G06K9/34

CPC分类号： G06K9/6206 ,  G06T7/0012 ,  G06T7/12 ,  G06T7/149 ,  G06T7/60 ,  G06T2207/10081 ,  G06T2207/20128 ,  G06T2207/30008

摘要： The apparatus 40 arranged for enabling an object mapping in a multi-dimensional dataset has an input 42 for receiving the multi-dimensional dataset in any suitable form. The core of the apparatus is formed by a processor 44, such as a conventional microprocessor or signal processor, a background storage 48 (typically based on a hard disk) and working memory 46 (typically based on RAM). The background storage 48 can be used for storing the dataset (or parts of it) when not being processed, and for storing operations of the graphic relational application macro and models (when not being executed by the processor). The main memory 46 typically holds the (parts of) the dataset being processed and the instructions of the graphic relational application macro and the models used for processing those parts of the dataset. The apparatus 40 according to the invention comprises computation means 45 arranged to define a set of geometric relations between a set of geometric templates using a geometrical relational application framework macro and means 47 for associating the multi-dimensional graphic objects with the geometric templates. Preferably, means 45 and 47 are operable by a computer program 43, preferably stored in memory 48. An output 49 is used for outputting the result of the mapping. Preferably, the output comprises a result of the associating of the multi-dimensional graphic objects with the geometric templates inter-related by the graphic relational application macro. The invention further relates to a method, a computer program, an image analysis system and an imaging system for an object mapping in a multi-dimensional dataset.

摘要翻译： 布置成使多维数据集中的对象映射能够实现的装置40具有用于以任何适当形式接收多维数据集的输入42。 该装置的核心由诸如常规微处理器或信号处理器的处理器44，通常基于硬盘的后台存储器48和通常基于RAM的工作存储器46形成。 后台存储器48可以用于在不被处理时存储数据集（或其部分），并且用于存储图形关系应用宏和模型的操作（当处理器不被执行时）。 主存储器46通常保存正在处理的数据集的（部分）和图形关系应用宏的指令以及用于处理数据集的这些部分的模型。 根据本发明的装置40包括计算装置45，其被布置为使用几何关系应用框架宏来定义一组几何模板之间的几何关系集合，以及用于将多维图形对象与几何模板相关联的装置47。 优选地，装置45和47可由计算机程序43操作，优选地存储在存储器48中。 输出49用于输出映射的结果。 优选地，输出包括将多维图形对象与由图形关系应用宏相互关联的几何模板相关联的结果。 本发明还涉及一种用于多维数据集中的对象映射的方法，计算机程序，图像分析系统和成像系统。